Photocycloadditions of substituted oxazoles with isoquinoline-1,3,4-trione—chemo-, regio-, diastereoselectivities and transformation of the photocycloadducts
of azomethineylides and aldehydes is explored, as hydrolysis of the resulting oxazolidine product gives facile access to valuable syn-β-aryl-β-hydroxy-α-amino esters. The use of using benzaldehyde-derived imines as the ylide precursor results in 1,3-dipolar cycloaddition with high conversions but low diastereoselectivity. In contrast, the employment of benzophenone-derived imines as the ylide precursor
The present disclosure provides compounds of Formula (I′), Formula (I), Formula (II), Formula (II-A), Formula (III), and Formula (IV). The compounds described herein are MAX binders and/or modulators of Myc, Mad, or Mxi1 (e.g., inhibitors of Myc, Mad, or Mxi1), and may be useful in treating a subject with a disease associated with Myc, such as proliferative diseases (e.g., cancer). Also provided in the present disclosure are pharmaceutical compositions and kits including the compounds described herein, as well as methods of using and uses of the compounds, compositions, and kits.
Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
申请人:Murphy Patrick Bryan
公开号:US20050198745A1
公开(公告)日:2005-09-15
Five-membered heteroaromatic keratin dyeing compounds with one, two, or three heteroatoms. This invention further relates to a composition for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more 5-membered heteroaromatic keratin dyeing compounds with one, tow, or three heteroatoms. This invention further relates to a method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.
Stabilization of the Max Homodimer with a Small Molecule Attenuates Myc-Driven Transcription
作者:Nicholas B. Struntz、Andrew Chen、Anja Deutzmann、Robert M. Wilson、Eric Stefan、Helen L. Evans、Maricela A. Ramirez、Tong Liang、Francisco Caballero、Mattheus H.E. Wildschut、Dylan V. Neel、David B. Freeman、Marius S. Pop、Marie McConkey、Sandrine Muller、Brice H. Curtin、Hanna Tseng、Kristen R. Frombach、Vincent L. Butty、Stuart S. Levine、Clementine Feau、Sarah Elmiligy、Jiyoung A. Hong、Timothy A. Lewis、Amedeo Vetere、Paul A. Clemons、Scott E. Malstrom、Benjamin L. Ebert、Charles Y. Lin、Dean W. Felsher、Angela N. Koehler
DOI:10.1016/j.chembiol.2019.02.009
日期:2019.5
The transcription factor Max is a basic-helix-loop-helix leucine zipper (bHLHLZ) protein that forms homodimers or interacts with other bHLHLZ proteins, including Myc and Mxd proteins. Among this dynamic network of interactions, the Myc/Max heterodimer has crucial roles in regulating normal cellular processes, but its transcriptional activity is deregulated in a majority of human cancers. Despite this significance, the arsenal of high-quality chemical probes to interrogate these proteins remains limited. We used small molecule microarrays to identify compounds that bind Max in a mechanistically unbiased manner. We discovered the asymmetric polycyclic lactam, KI-MS2-008, which stabilizes the Max homodimer while reducing Myc protein and Myc-regulated transcript levels. KI-MS2-008 also decreases viable cancer cell growth in a Myc-dependent manner and suppresses tumor growth in vivo. This approach demonstrates the feasibility of modulating Max with small molecules and supports altering Max dimerization as an alternative approach to targeting Myc.